ICON_SIZE_BUTTON = Gtk.IconSize.BUTTON
class Visual:
+ FRAMES_PER_SEC = 60 # hz
+ RATES_PER_SEC = 1 # hz
+
def __init__(self, config, device, logger):
def get_objects(names):
return list(map(lambda x:
self.builder = Gtk.Builder()
self.history = [0.5]*1000
+ self.rate_due = 0
+ self.rate_cnt = {'acc': 0,
+ 'mag': 0,
+ 'lgt': 0,
+ 'tch': 0,
+ 'a2d': 0}
+
self.builder.add_from_file('visual.ui')
self.builder.connect_signals(self)
+
self.window = self.builder.get_object("window")
self.settings = self.builder.get_object("settings")
+ self.plotdraw = self.builder.get_object('plot')
+ self.plotsns = self.builder.get_object('sns')
+ self.plotaxis = self.builder.get_object('axis')
+
+ if sys.version_info<(3,0,0):
+ self.plotdraw.connect('expose-event', self.on_expose)
+ else:
+ self.plotdraw.connect('draw', self.on_draw)
self.accs = get_objects(['accx', 'accy', 'accz'])
self.mags = get_objects(['magx', 'magy', 'magz'])
if act.get_active():
self.status(self.device.connect())
else:
- self.status(self.device.disconnect())
+ self.device.disconnect()
return True
def on_xively(self, act):
if act.get_active():
self.status(self.logger.connect())
else:
- self.status(self.logger.disconnect())
+ self.logger.disconnect()
return True
def on_flush(self, act):
setattr(self.config, name, value)
self.config.save()
- def on_expose(self, obj, _):
- cairo = obj.window.cairo_create()
+ def on_draw(self, obj, cairo):
count = len(self.history)
extents = cairo.clip_extents()
- width = extents[2] - extents[0]
- height = extents[3] - extents[1]
+ width = extents[2] - extents[0]
+ height = extents[3] - extents[1]
cairo.set_line_width(4)
- for i in range(0,len(self.history)):
+ for i in range(count):
x = i*width/(count-1)
y = ((1-self.history[i]) * 0.8 + 0.1) * height
if i==0:
cairo.line_to(x, y)
cairo.stroke()
+ def on_expose(self, obj, event):
+ cairo = obj.window.cairo_create()
+ self.draw(obj, cairo)
+
def on_key(self, win, ev):
if ev.string == 'q':
Gtk.main_quit();
def on_destroy(self, win):
Gtk.main_quit()
- # Methods
+ # Methods
def load_config(self):
def set_val(name, val):
self.builder.get_object(name).set_value(val)
set_act(key+'_btn', self.config.enable[key])
set_val(key+'_spin', self.config.rate[key])
-
def update(self, state):
def setval(objs, vals, lbls):
+ found = 0
for i in range(0,len(objs)):
if vals[i] == None:
continue
+ found = 1
if lbls and lbls[i]:
objs[i].set_text('%s: %f' % (lbls[i], vals[i]))
else:
objs[i].set_text('%f' % vals[i])
-
- setval(self.accs, state.acc, ['X', 'Y', 'Z'])
- setval(self.mags, state.mag, ['X', 'Y', 'Z'])
- setval(self.lgts, state.lgt, [])
- setval(self.tchs, state.tch, ['P', 'D'])
- setval(self.a2ds, state.a2d, [])
-
- self.history = self.history[1:] + [state.a2d[0]]
- self.window.queue_draw()
+ return found
+
+ # Dispaly values and sum up rates
+ self.rate_cnt['acc'] += setval(self.accs, state.acc, ['X', 'Y', 'Z'])
+ self.rate_cnt['mag'] += setval(self.mags, state.mag, ['X', 'Y', 'Z'])
+ self.rate_cnt['lgt'] += setval(self.lgts, state.lgt, [])
+ self.rate_cnt['tch'] += setval(self.tchs, state.tch, ['P', 'D'])
+ self.rate_cnt['a2d'] += setval(self.a2ds, state.a2d, [])
+
+ # Save history
+ idxs = ['acc', 'mag', 'tch', 'lgt', 'a2d']
+ sns = idxs[self.plotsns.get_active()]
+ axis = int(self.plotaxis.get_value())
+ if hasattr(state, sns):
+ data = getattr(state, sns)
+ axis = min(axis-1, len(data)-1)
+ item = data[axis]
+ if item != None:
+ self.history = self.history[1:] + [item]
def debug(self, state):
print('update: ' + str(state))
print('\ttch - ' + str(state.touch))
print('\ta2d - ' + str(state.a2d))
- def timer(self):
+ def read_timer(self):
def check(state, name):
btn = self.builder.get_object(name + '_btn')
con = self.builder.get_object(name + '_con')
btn.set_active(state)
con.set_from_stock(img, ICON_SIZE_BUTTON)
+ # Update status icons
check(self.device.running(), "serial")
check(self.logger.running(), "xively")
+ # Read data and update data display
for item in self.device.process():
self.update(item)
self.logger.append(item)
#self.debug(item)
+ # Refresh window
+ self.window.queue_draw()
+
+ return True
+
+ def rate_timer(self):
+ for sns in self.rate_cnt:
+ rate = self.rate_cnt[sns] * Visual.RATES_PER_SEC
+ obj = self.builder.get_object(sns + '_rate')
+ obj.set_text('%d' % rate)
+ self.rate_cnt[sns] = 0
return True
def run(self):
self.load_config()
self.window.show()
- GLib.timeout_add(1000/60, self.timer)
+ GLib.timeout_add(1000/Visual.FRAMES_PER_SEC, self.read_timer)
+ GLib.timeout_add(1000/Visual.RATES_PER_SEC, self.rate_timer)
Gtk.main()
# Private methods
def status(self, msg):
+ status = self.builder.get_object("status")
+ status.pop(context_id=0)
if not msg:
return
- status = self.builder.get_object("status")
status.push(text=('Error: ' + msg), context_id=0)
projects / ~andy / csm213a-hw / blobdiff